Coal mine sewage treatment device with combined filler filter structure

Abstract

The utility model discloses a coal mine sewage treatment device with combined filler filter structure relates to sewage treatment technical field, including the shell, the shell outside wall inserts and is provided with the water inlet pipe, the shell outside wall bottom both ends all insert and are provided with the water outlet pipe, be provided with the separating chamber in the shell, the separating chamber inside is linked with the water inlet pipe, a plurality of filter holes are passed through and are arranged in the separating chamber side wall, rotating frame is rotatably arranged in the middle of separating chamber inner top wall through bearing, the utility model discloses through the tangent direction of sewage along separating chamber inner wall and enters, under the cyclone action of the rotating flow that the self impact force, gravity and rotating frame drive guide vane rotation generate, large -sized coal powder and silt can be rapidly thrown to the inboard wall and settle and slide by centrifugal force, this design can remove most solid impurities in the sewage fast and effectively, has reduced the burden of subsequent filtration link, has improved overall sewage treatment efficiency, has reduced the equipment wear and tear.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a coal mine wastewater treatment device with a combined packing filter structure. Background Technology

[0002] During coal mining, a large amount of wastewater containing solid impurities such as coal dust and silt is generated. Traditional coal mine wastewater treatment equipment typically uses relatively simple filtration or sedimentation methods to treat this type of wastewater.

[0003] However, existing coal mine wastewater treatment devices with combined packing filter structures still have some drawbacks in practical use: Coal mine wastewater often contains a large amount of large suspended particles, such as coal dust and silt, and traditional filtration methods mostly do not adequately consider pretreatment of these large suspended particles during design. When wastewater directly enters the filtration system, a large amount of large suspended particles quickly accumulate on the surface of the filter media, forming a thick filter cake layer. This not only greatly increases filtration resistance, leading to a significant decrease in filtration speed, but also forces subsequent filtration stages to withstand excessive loads. Under such high-load operation for extended periods, the filter media is prone to clogging, the filtration effect gradually deteriorates, and frequent backwashing or replacement of the filter media is required, increasing equipment operating costs and maintenance workload, and seriously affecting the efficiency and quality of coal mine wastewater treatment.

[0004] To address these issues, we designed a coal mine wastewater treatment device with a combined packing filter structure. Utility Model Content

[0005] The purpose of this invention is to provide a coal mine wastewater treatment device with a combined filler filter structure to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a coal mine wastewater treatment device with a combined packing filter structure, including an outer shell. An inlet pipe is embedded in the outer wall of the outer shell, and outlet pipes are embedded at both ends of the bottom of the outer wall of the outer shell. A separation chamber is provided inside the outer shell, and the interior of the separation chamber is connected to the inlet pipe. Multiple filter holes are opened through the side wall of the separation chamber. A rotating frame is rotatably mounted in the middle of the top wall of the separation chamber via a bearing. Guide vanes are fixedly installed on the outer wall of the rotating frame. A filter cavity is opened inside the outer shell, and the filter cavity is located below the separation chamber. A gradient filter element is provided in the filter cavity. A flow groove is embedded in the outer shell, and the filter cavity is connected to the outlet pipe through the flow groove.

[0007] Furthermore, a fixing frame is provided inside the filter chamber, and a flow guide shroud is fixedly connected to the top of the fixing frame. The flow guide shroud is a cone.

[0008] Furthermore, the gradient filter element includes an outer coarse filter layer, and a middle adsorption layer and an inner biological filter layer are sequentially disposed below the outer coarse filter layer.

[0009] Furthermore, the outer coarse filter layer is a stainless steel corrugated mesh, the middle adsorption layer is filled with activated carbon particles, and the inner biological filter layer is filled with biological ceramic particles containing nitrifying bacteria.

[0010] Furthermore, a support frame is fixedly connected between the outer coarse filter layer, the middle adsorption layer, and the inner biofilter layer. The support frame is made of a corrosion-resistant corrugated plate skeleton.

[0011] Furthermore, the number of the guide vanes is multiple, and the multiple guide vanes are arranged in an inclined manner at equal intervals.

[0012] Furthermore, the water inlet pipe is installed through the upper part of the separation chamber, and the water inlet pipe enters the separation chamber along the tangential direction of the inner wall of the separation chamber.

[0013] Furthermore, the outlet pipe is connected to a collection box via a water supply pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, sewage enters along the tangential direction of the inner wall of the separation chamber. Under the impact force, gravity, and the swirling effect generated by the rotation of the guide vanes driven by the rotating frame, large particles of coal powder and silt can be quickly thrown towards the inner wall by centrifugal force and settle down. This design can quickly and effectively remove most of the solid impurities in sewage, reduce the burden on subsequent filtration stages, improve the overall sewage treatment efficiency, and reduce equipment wear.

[0016] 2. In this utility model, the combination of the filtration chamber and the gradient filter element further improves the quality of wastewater treatment. The pre-purified wastewater is evenly distributed by the guide hood and enters the gradient filter element. It passes through the outer coarse filter layer, the middle adsorption layer and the inner biological filter layer in sequence for multi-stage filtration, which respectively intercepts residual suspended solids, removes chemical pollutants and degrades organic matter. This layered filtration structure is highly targeted and can fully remove different types of pollutants in wastewater, ensuring that the filtered clean water meets high standards, and providing a reliable guarantee for the deep treatment and resource utilization of coal mine wastewater. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of the present invention in half-section view;

[0019] Figure 3This is a three-dimensional structural schematic diagram of the present invention in half-section view;

[0020] Figure 4 This is a schematic diagram of the air guide cover structure of this utility model.

[0021] In the diagram: 1. Outer shell; 2. Inlet pipe; 3. Outlet pipe; 4. Separation chamber; 5. Rotating frame; 6. Guide vanes; 7. Filter chamber; 8. Gradient filter element; 9. Flow channel; 10. Fixing frame; 11. Guide hood; 12. Outer coarse filter layer; 13. Middle adsorption layer; 14. Inner biological filter layer; 15. Support frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3 This utility model provides a technical solution: a coal mine wastewater treatment device with a combined packing filter structure, including an outer shell 1, an inlet pipe 2 embedded in the outer wall of the outer shell 1, and outlet pipes 3 embedded at both ends of the bottom of the outer wall of the outer shell 1. A separation chamber 4 is provided inside the outer shell 1, and the interior of the separation chamber 4 is connected to the inlet pipe 2. Multiple filter holes are opened through the side wall of the separation chamber 4. A rotating frame 5 is rotatably installed in the middle of the top wall of the separation chamber 4 via a bearing. Guide vanes 6 are fixedly installed on the outer wall of the rotating frame 5. A filter cavity 7 is opened inside the outer shell 1, located below the separation chamber 4. A gradient filter element 8 is provided in the filter cavity 7. A flow groove 9 is embedded in the outer shell 1, and the filter cavity 7 is connected to the outlet pipe 3 through the flow groove 9. There are multiple guide vanes 6, and the multiple guide vanes 6 are arranged in an inclined and equidistant manner. The inlet pipe 2 is installed through the upper part of the separation chamber 4 and enters the separation chamber 4 along the tangential direction of the inner wall of the separation chamber 4. The outlet pipe 3 is connected to a collection box through a water supply pipe.

[0024] In practice, when the coal mine wastewater enters through the inlet pipe 2, it is guided to enter the separation chamber 4 along the tangential direction of the inner wall. Under the combined action of the wastewater's own impact force and gravity, and the rotation of the rotating frame 5 driving the guide vanes 6 to rotate, the coal mine wastewater swirls around the inner wall of the separation chamber 4. Large particles of coal powder and silt are thrown towards the inner wall of the separation chamber 4 under the action of centrifugal force and settle downwards under the action of gravity, sliding down the wall to the bottom. The coal mine wastewater centrifugally passes through the filter holes opened on the side wall of the separation chamber 4 and enters the filter chamber 7. The preliminarily purified coal mine wastewater flows downwards through the central area of ​​the filter chamber 7 into the gradient filter element 8. The filtered clean water flows from the central outlet of the gradient filter element 8 through the flow channel 9 to the collection box.

[0025] See Figure 4 A fixing frame 10 is installed inside the filter chamber 7. A flow guide 11 is fixedly connected to the top of the fixing frame 10. The flow guide 11 is a cone. The flow guide 11 is installed between the separation chamber 4 and the gradient filter element 8 to prevent sewage from directly impacting the gradient filter element 8.

[0026] See Figure 2 The gradient filter element 8 includes an outer coarse filter layer 12, a middle adsorption layer 13 and an inner biological filter layer 14 arranged sequentially below the outer coarse filter layer 12. The outer coarse filter layer 12 is a stainless steel corrugated mesh, the middle adsorption layer 13 is filled with activated carbon particles, and the inner biological filter layer 14 is filled with biological ceramic particles containing nitrifying bacteria. The outer coarse filter layer 12 intercepts residual suspended solids, the middle adsorption layer 13 removes chemical pollutants, and the inner biological filter layer 14 degrades organic matter, thus completing multi-stage filtration.

[0027] See Figure 2 A support frame 15 is fixedly connected between the outer coarse filter layer 12, the middle adsorption layer 13 and the inner biological filter layer 14. The support frame 15 is made of corrosion-resistant corrugated plate skeleton to ensure the interlayer gap and compressive strength of the gradient filter element 8.

[0028] Working principle:

[0029] When coal mine wastewater enters through inlet pipe 2, it is guided to enter the separation chamber 4 along the tangential direction of the inner wall. Under the combined action of the wastewater's own impact force and gravity, and the rotation of the rotating frame 5 driving the guide vanes 6 to rotate, the coal mine wastewater swirls around the inner wall of the separation chamber 4. Large particles of coal powder and silt are thrown towards the inner wall of the separation chamber 4 under the action of centrifugal force and settle downwards under the action of gravity, sliding down the wall to the bottom. The coal mine wastewater centrifugally passes through the filter holes opened on the side wall of the separation chamber 4 and enters the filter chamber 7. The preliminarily purified coal mine wastewater flows downward through the central area of ​​the filter chamber 7, and after being evenly distributed by the guide hood 11, it enters the gradient filter element 8. It passes through the outer coarse filter layer 12 to intercept residual suspended solids, the middle adsorption layer 13 to remove chemical pollutants, and the inner biological filter layer 14 to degrade organic matter, completing multi-stage filtration. The filtered clean water flows from the central outlet of the gradient filter element 8 through the flow channel 9 to the collection box.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A coal mine wastewater treatment device with a combined packing filter structure, comprising a shell (1), characterized in that, An inlet pipe (2) is embedded in the outer wall of the outer shell (1), and an outlet pipe (3) is embedded at both ends of the bottom of the outer wall of the outer shell (1). A separation chamber (4) is provided inside the outer shell (1), and the interior of the separation chamber (4) is connected to the inlet pipe (2). Multiple filter holes are opened through the side wall of the separation chamber (4). A rotating frame (5) is rotatably installed in the middle of the top wall of the separation chamber (4) via a bearing. A guide vane (6) is fixedly installed on the outer wall of the rotating frame (5). A filter chamber (7) is opened inside the outer shell (1), and the filter chamber (7) is located below the separation chamber (4). A gradient filter element (8) is provided inside the filter chamber (7). A flow groove (9) is embedded in the outer shell (1), and the filter chamber (7) is connected to the outlet pipe (3) through the flow groove (9).

2. A coal mine wastewater treatment device with a combined packing filter structure as described in claim 1, characterized in that, A fixing frame (10) is provided inside the filter chamber (7), and a flow guide (11) is fixedly connected to the top of the fixing frame (10). The flow guide (11) is a cone.

3. A coal mine wastewater treatment device with a combined packing filter structure as described in claim 2, characterized in that, The gradient filter element (8) includes an outer coarse filter layer (12), and a middle adsorption layer (13) and an inner biofilter layer (14) are arranged sequentially below the outer coarse filter layer (12).

4. A coal mine wastewater treatment device with a combined packing filter structure as described in claim 3, characterized in that, The outer coarse filter layer (12) is a stainless steel corrugated mesh, the middle adsorption layer (13) is filled with activated carbon particles, and the inner biological filter layer (14) is filled with nitrifying bacteria bio-ceramic particles.

5. A coal mine wastewater treatment device with a combined packing filter structure as described in claim 4, characterized in that, A support frame (15) is fixedly connected between the outer coarse filter layer (12), the middle adsorption layer (13) and the inner biological filter layer (14). The support frame (15) is made of corrosion-resistant corrugated plate skeleton.

6. A coal mine wastewater treatment device with a combined packing filter structure as described in claim 5, characterized in that, The number of the guide vanes (6) is multiple, and the multiple guide vanes (6) are arranged in an inclined manner at equal intervals.

7. A coal mine wastewater treatment device with a combined packing filter structure as described in claim 6, characterized in that, The water inlet pipe (2) is installed through the upper part of the separation chamber (4), and the water inlet pipe (2) enters the separation chamber (4) along the tangential direction of the inner wall of the separation chamber (4).

8. A coal mine wastewater treatment device with a combined packing filter structure as described in claim 7, characterized in that, The outlet pipe (3) is connected to a collection box via a water supply pipe.

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